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Finding the Fourth Proportional to 371,503.90, 557,260.98 and 105,264.16

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Solution

The fourth proportional to 371,503.90, 557,260.98 and 105,264.16 is: 157,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,503.90 : 557,260.98 = 105,264.16 : x
  2. Step 2: Convert to fraction form
    371,503.90/557,260.98 = 105,264.16/x
  3. Step 3: Cross multiply
    371,503.90x = 557,260.98 × 105,264.16
  4. Step 4: Simplify right side
    371,503.90x = 58,659,607,172.58
  5. Step 5: Solve for x
    x = 58,659,607,172.58/371,503.90
  6. Step 6: Final answer
    x = 157,897.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.